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Cell Global Identity (CGI) is a globally unique identifier for a Base Transceiver Station in mobile phone networks. [1] It consists of four parts: Mobile Country Code (MCC), Mobile Network Code (MNC), Location Area Code (LAC) and Cell Identification (CI).
The UTRAN Cell ID (LCID) is a concatenation of the RNC-ID (12 bits, ID of the Radio Network Controller) and Cell ID (16 bits, unique ID of the Cell). CID is just the Cell ID. CID is just the Cell ID. The concatenation of both will still be unique but can be confusing in some cellid databases as some store the CID and other store LCID.
RADIUS Server – See AAA. RAN – Radio Access Network – See AN. Restrictive Mode – See PRL. RFC – Request For Comments RN – Radio Network – See AN. RoamEx. Roaming. Roaming Agreement. Roaming Indicator. RSP – Roaming Service Provider RUIM – Removable User Identity Module RVR – Roamer Verification and Reinstatement
In telecommunication, a public land mobile network (PLMN) is a combination of wireless communication services offered by a specific operator in a specific country. [1] [2] A PLMN typically consists of several cellular technologies like GSM/2G, UMTS/3G, LTE/4G, NR/5G, offered by a single operator within a given country, often referred to as a cellular network.
An MCC is used in combination with an MNC (a combination known as an "MCC/MNC tuple") to uniquely identify a mobile network operator (carrier) using the GSM (including GSM-R), UMTS, LTE, and 5G public land mobile networks. Some but not all CDMA, iDEN, and satellite mobile networks are identified with an MCC/MNC tuple as well.
Roaming is one of the fundamental mobility management procedures of all cellular networks.Roaming is defined [2] as the ability for a cellular customer to automatically make and receive voice calls, send and receive data, or access other services, including home data services, when travelling outside the geographical coverage area of the home network, by means of using a visited network.
MCC (Mobile Country Code): A three-digit code that is used for the country’s identity. MNC (Mobile Network Code): The mobile network operator is represented by a number code. More specifically, the APN identifies the packet data network (PDN) that a mobile data user wants to communicate with.
The unique location area identities of the cell towers can be collected by devices that utilize the wireless network provided by those cell towers. [3] This data is primarily contributed by smartphone users who have installed apps, such as OpenCelliD [4] or OpenCelliD Client, [5] and commercial tracking devices such as blackboxes, but also by wholesale data donation by corporations.